package github.aloofcoder.gulimall.ware.config;

import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.transaction.annotation.EnableTransactionManagement;

/**
 * @author hanle
 * @date 2020/12/10 16:51
 * 编程千万条, 规范第一条, 注释不规范, 接盘泪两行!
 */
@EnableTransactionManagement
@MapperScan("github.aloofcoder.gulimall.ware.dao")
@Configuration
public class MybatisConfig {

    @Bean
    public MybatisPlusInterceptor paginationInterceptor() {
        MybatisPlusInterceptor mybatisPlusInterceptor = new MybatisPlusInterceptor();
        PaginationInnerInterceptor paginationInnerInterceptor = new PaginationInnerInterceptor();
        // 设置请求的页面大于最大页后操作， true调回到首页，false 继续请求  默认false
        paginationInnerInterceptor.setOverflow(true);
        // 设置最大单页限制数量，默认 500 条，-1 不受限制
        paginationInnerInterceptor.setMaxLimit(1000L);
//        // 开启 count 的 join 优化,只针对部分 left join
//        paginationInnerInterceptor.set(new JsqlParserCountOptimize(true));
        mybatisPlusInterceptor.addInnerInterceptor(paginationInnerInterceptor);
        return mybatisPlusInterceptor;
    }
}
